Home / 715,345.95-987,263.24-429,023.55

Finding the Fourth Proportional to 715,345.95, 987,263.24 and 429,023.55

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Solution

The fourth proportional to 715,345.95, 987,263.24 and 429,023.55 is: 592,103.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,345.95 : 987,263.24 = 429,023.55 : x
  2. Step 2: Convert to fraction form
    715,345.95/987,263.24 = 429,023.55/x
  3. Step 3: Cross multiply
    715,345.95x = 987,263.24 × 429,023.55
  4. Step 4: Simplify right side
    715,345.95x = 423,559,177,864.18
  5. Step 5: Solve for x
    x = 423,559,177,864.18/715,345.95
  6. Step 6: Final answer
    x = 592,103.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.